Wear Characteristics of Conveyor Chain 1. Mechanical Wear
When conveyor chain is used under normal operating conditions, mechanical wear causes the bearing surface of the chain to shine brightly. Proper lubrication ensures longer wear life. 2. Wear Caused by Conveyed Material Materials having excessive wear characteristics tend to stick to the chain and wear its surface due to reciprocal friction between the chain and material. Care should be taken to prevent material from falling on the chain under these conditions. For extra protection, specify chain with higher wear resistance. 3. Wear Due to Corrosion Conveyor chain used in applications where acidic or alkaline chemicals are present will be subject to corrosive wear as well as mechanical wear. To protect against chemical corrosion accompanying mechanical wear, use corrosion-resistant chain. 4. Electrochemical Corrosion When chain is splashed with water and then enters a chemical solution, the surface of the sliding area (i.e., pin/bushing, bushing/roller) is exposed to electrochemical corrosion, one of the most damaging types of corrosion. U.S. Tsubaki is constantly researching ways to improve the performance of our chains by testing combinations of different materials. Please inquire about our complete line of chains for special environments.
1. Mechanical Wear
3. Wear from Corrosion
2. Wear from Conveyed Materials
4. Electrochemical Corrosion
Figure 15-9: Types of Wear
L IFE OF RF C ONVEYOR C HAIN AND S PROCKETS 29
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